ATE89418T1 - DEVICE FOR MONITORING FAULTS IN CLAMPS OF ROTORS OF ELECTRICAL MACHINERY. - Google Patents

DEVICE FOR MONITORING FAULTS IN CLAMPS OF ROTORS OF ELECTRICAL MACHINERY.

Info

Publication number
ATE89418T1
ATE89418T1 AT86102799T AT86102799T ATE89418T1 AT E89418 T1 ATE89418 T1 AT E89418T1 AT 86102799 T AT86102799 T AT 86102799T AT 86102799 T AT86102799 T AT 86102799T AT E89418 T1 ATE89418 T1 AT E89418T1
Authority
AT
Austria
Prior art keywords
probe
rotor
right angle
angled
rotors
Prior art date
Application number
AT86102799T
Other languages
German (de)
Inventor
Michel Besanceney
Original Assignee
Alsthom Gec
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alsthom Gec filed Critical Alsthom Gec
Application granted granted Critical
Publication of ATE89418T1 publication Critical patent/ATE89418T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/40—Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2693—Rotor or turbine parts

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Control Of Electric Motors In General (AREA)
  • Synchronous Machinery (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

In a rotor binding inspection device comprising a self-powered carriage movable about the rotor shaft and a probe-carrying arm carried by said carriage and operable to move longitudinally parallel to the axis of the rotor between the stator and the rotor binding, said arm carrying at its extremity two detector units each comprising a right angle, longitudinal wave probe and an oblique angled, transverse wave probe, additional means are provided for recording the right angle probe echoes, for recording the angled probe echoes and for defining for the angled probes, based upon the indications from the right angle probes, a variable detection threshold.
AT86102799T 1985-03-06 1986-03-04 DEVICE FOR MONITORING FAULTS IN CLAMPS OF ROTORS OF ELECTRICAL MACHINERY. ATE89418T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503302A FR2578647B1 (en) 1985-03-06 1985-03-06 DEVICE FOR CONTROLLING FAULTS OF ROTORS OF ELECTRIC MACHINES
EP86102799A EP0193924B1 (en) 1985-03-06 1986-03-04 Apparatus for monitoring faults in the clamps of the rotors of electric machines

Publications (1)

Publication Number Publication Date
ATE89418T1 true ATE89418T1 (en) 1993-05-15

Family

ID=9316928

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86102799T ATE89418T1 (en) 1985-03-06 1986-03-04 DEVICE FOR MONITORING FAULTS IN CLAMPS OF ROTORS OF ELECTRICAL MACHINERY.

Country Status (5)

Country Link
US (1) US4709582A (en)
EP (1) EP0193924B1 (en)
AT (1) ATE89418T1 (en)
DE (1) DE3688404T2 (en)
FR (1) FR2578647B1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4970890A (en) * 1988-11-23 1990-11-20 Westinghouse Electric Corp. Electric generator inspection system
US4889000A (en) * 1987-02-11 1989-12-26 Westinghouse Electric Corp. Electric generator inspection system and motor controller
US4803563A (en) * 1987-09-02 1989-02-07 Westinghouse Electric Corp. Rotor-in-stator examination magnetic carriage and positioning apparatus
US4962660A (en) * 1989-06-19 1990-10-16 Westinghouse Electric Corp. Apparatus for impact testing for electric generator stator wedge tightness
DE4125950C1 (en) * 1991-08-06 1992-11-05 Dornier Medizintechnik Gmbh, 8000 Muenchen, De
DE4223502A1 (en) * 1992-07-17 1994-01-20 Krautkraemer Gmbh Method and device for starting a time diaphragm in the ultrasonic material test using the pulse-echo method
JP3653984B2 (en) * 1998-05-27 2005-06-02 日本精工株式会社 Ultrasonic flaw detection method for bearing rings
US6161436A (en) * 1999-06-04 2000-12-19 Caterpillar Inc. Shoe for ultrasonically inspecting crankshaft fillets
GB2356048A (en) * 1999-08-18 2001-05-09 Peter Edward Sharp Acoustic on-line condition monitoring of a machine part
US6732587B2 (en) 2002-02-06 2004-05-11 Lockheed Martin Corporation System and method for classification of defects in a manufactured object
NL1024726C2 (en) * 2003-11-06 2005-05-09 Roentgen Tech Dienst Bv Method for checking a weld between two metal pipelines.
EP2040070B1 (en) 2007-09-18 2015-12-02 Alstom Technology Ltd Method and apparatus for the detection of cracks in the teeth of generator rotors
JP2015010950A (en) * 2013-06-28 2015-01-19 東日本旅客鉄道株式会社 Rail flaw detection device and rail flaw detection method
CN110940737B (en) * 2019-11-01 2020-12-15 浙江大学 A low-frequency phonon emission monitoring device for damage diagnosis of buried pipelines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599478A (en) * 1968-12-03 1971-08-17 Amf Inc Self-calibrating ultrasonic thickness-measuring apparatus
JPS5369691A (en) * 1976-12-02 1978-06-21 Sumitomo Metal Ind Method and apparatus for automatic supersonic crack detection
NL7904973A (en) * 1979-06-26 1980-12-30 Roentgen Tech Dienst Bv SYSTEM FOR EXAMINING WELDED CONNECTIONS IN PIPES WITH ULTRASONIC WAVES.
US4351190A (en) * 1979-12-17 1982-09-28 Wilfried Rehme Ultrasonic non-destructive testing device for welding beads
JPS59112258A (en) * 1982-12-20 1984-06-28 Sumitomo Metal Ind Ltd Ultrasonic flaw detecting method of deformed steel tube
US4502331A (en) * 1983-09-14 1985-03-05 Southwest Research Institute Method for ultrasonic inspection of turbine disc rims

Also Published As

Publication number Publication date
US4709582A (en) 1987-12-01
FR2578647A1 (en) 1986-09-12
EP0193924A2 (en) 1986-09-10
FR2578647B1 (en) 1987-03-06
DE3688404D1 (en) 1993-06-17
EP0193924B1 (en) 1993-05-12
EP0193924A3 (en) 1990-05-02
DE3688404T2 (en) 1993-08-26

Similar Documents

Publication Publication Date Title
DE3688404D1 (en) DEVICE FOR MONITORING ERRORS IN BRACKETS OF ROTORS OF ELECTRICAL MACHINES.
JPS54111871A (en) Frequency detecting method
SE8303874D0 (en) DEVICE FOR CRACKET DETECTION
IT8621054A0 (en) METHOD AND APPARATUS FOR DETECTING AXIAL CRACKS IN ROTATING MACHINE ROTORS.
KR890005530A (en) Electric property inspection method by probe device
SE7602785L (en) KIT AND DEVICE FOR COMMON LOCATION ON A WIRE
ES2011340A6 (en) DETERMINATION BY REMOTE DETECTION OF THE INTEGRITY OF THE SHAFT AND THE ROTOR IN ASSEMBLED PUMPS.
MX151679A (en) IMPROVEMENTS IN APPARATUS FOR THE DETECTION OF ANOMALIES IN ELECTRICALLY CONDUCTING ROTATING MEMBERS
DE59509542D1 (en) METHOD AND DEVICE FOR DETERMINING A PERFORMANCE
DE58902478D1 (en) ARRANGEMENT FOR SPEED AND ROTOR POSITION DETECTION OF AN ELECTRICAL MACHINE.
ATE31156T1 (en) TEST DEVICE FOR DETECTING DAMAGE TO THE CASTING STRIPS OF A CONTINUOUS CASTING MOLD.
NO982392L (en) Method and apparatus for testing electric drives
AT327248B (en) PROBE DEVICE FOR MEASURING THE RUBBLE PROFILE IN SHAFT FURNACES, IN PARTICULAR BIG FURNACES, AND METHOD FOR MEASURING THE RUBBLE PROFILE
Bakhri et al. Investigation and development of a real-time on-site condition monitoring system for induction motors
CN109030617A (en) Barkhausen effect-based magnetic characteristic detection method and device for magnetic suspension track
SU1663404A1 (en) Method of controlling radial clearences when assembling turbines
US4687990A (en) Brush potential curve tracer
SU1182306A1 (en) Method of inspecting electromotor ball bearings
SU585048A1 (en) Electric discharge probe
NO144612C (en) APPARATUS FOR AA MEASUREMENT AND INDICATE THE DISTANCE TO AN INCIDENTAL SHORT CIRCUIT OR SIMILAR LINE ERROR ON AN AC POWER LINE
SU629065A1 (en) Apparatus for investigating forced-cutting of wood
SU141010A1 (en) Device for measuring the moment of friction
SU945694A1 (en) Rotor rotation axis position determination method
SU1536329A1 (en) Method of checking asymmetry of electric machine rotor
SU938107A1 (en) Device for testing material for friction

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee